PX6410
Multi-Rate VCSEL Driver
Product Brief
September 2004
Description
The growing use of the Internet has created
increasingly higher demand for multi-Gb/s I/O
performance. The demand for 10+ Gb/s WAN
bandwidth fuels the growth of short-reach 10
Gb/s infrastructures within high-end telco and
datacom routers, switches, servers and other
proprietary chassis-to-chassis links.
The Zarlink PX6410 10 Gb/s serial VCSEL driver
is designed for various 10 Gb/s PMD
Features
applications.
It consists of a DC-coupled
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Up to 10.7 Gb/s serial VCSEL driver
amplifier with adjustable modulation and bias
currents optimized for driving commercially
available VCSEL-based transmit optical sub
assemblies (TOSAs) from a single +3.3 V supply.
Single +3.3 V supply
Average power control (APC) provides
constant output optical power
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Digital diagnostics provided with bias,
photodiode, and temperature monitors
VCSEL modulation and bias currents can be
programmed by a variety of means including
external resistors, programmable potentiometers
Independent temperature compensation
for VCSEL bias and modulation current
or microcontroller DAC outputs.
Selectable
current temperature coefficients and APC
feedback control allow optical output power and
extinction ratio to be maintained over
temperature.
VCSEL fault protection limits output
optical power for laser safety
Differential CML compatible inputs with
on-chip termination
4 mm x 4 mm QFN package
Applications
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XFP, XENPAK, X2, XPAC form factors
10GbE, 10GFC, 8GFC, 4GFC, OC-192
Proprietary intra-system optics
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Zarlink Semiconductor Inc.
